https://jamestown.org/program/biden-putin-summit-failed-to-reverse-downturn-in-bilateral-relations/
https://www.dw.com/ru/sokrashhenie-personala-posolstva-ssha-v-rossii-chto-jeto-oznachaet/a-58708077
https://novayagazeta.ru/articles/2021/07/28/ia-mat-razvedchika
http://www.kasparov.ru/material.php?id=60FF7CFF5770B
https://www.kommersant.ru/doc/4880636